Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Romanian
vesel
←
Proto-Indo-European
*h₁wésus
(derived)
←
Proto-Slavic
*veselъ
(derived)
→
Romanian
veselie
(affix)
→
Romanian
Vesel
(mention)
→
Romanian
Veselu
(mention)